About Melissa Expertise I can answer questions about feeding, handling, restraining and caring for all different kinds of rodents.
Experience I am very into the rodent field. I own many different species and I also work at a veterinarian's office with two highly trained rodent specialists.
Answer I really don't know much about flying squirrels, but I would assume that just like anything else, feed them milk until they start eating dry food. Offer them dry or 'hard' food on a daily basis and when you see them eating it, you can most likely stop the milk. Make sure they start refusing the bottle, though. Good luck!